Plumbing system



31925. J. L. FRU-IN PLUMBING SYSTEM I I III Filed Aug. 4-, 1922 Jam L. fiwzw.

Patented Jan. 20, 1925.

UNITED STATES nszaeae PATENT GEE- 16E.

JOHN L. FRUIN. OF CHICAGO, ILLINOIS; ROBERT E. FRUIN EXECUTOR OF THE SAID JOHN L. FRUIN, DECEASED.

PLUMBING SYSTEM.

Application filed August 4, 1922.

To all whom it may concern:

Be it known that I, JOHN L FRUIN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Plumbing Systems, of which the following is a specification.

This invention relates to, plumbing systems of the type designed for use in multiple story buildings, and wherein the main soil and vent stacks, and vent and waste branches connected thereto are all located within a vertical wall of the building, extending from the lower floor to the roof, and are designed and adapted to serve a plurality of bathroom fixtures, such as the closet, lavatory and bathtub.

In an application filed by me the 19th day of June, 1922, Serial No. 569,4t52 I have disclosed and claimed a plumbing system of this type characterized by a spaced arrangement of the soil and revent stacks and the location of the waste and vent branch assemblies, to which the drain pipes from the lavatory and bathtub are connected, wholly between said waste and revent stacks, whereby I eliminate the necessity of jumpovers, better adapt the system for installation in relatively thin Walls, and obtain various other advantages. My present invention embodies the same general arrangement or grouping of the soil and revent stacks and the intermediate waste and vent branch assemblies as in my former application above identified; but involves certain specific changes and improvements designed to better adapt the system to serve small bathrooms where the fixtures are crowded, and especially where modern fixtures, such as the built-in bathtub, are used, requiring more working space between the outer wall of the bathtub and the waste opening in the partition wall for the location of the usual drum trap in and beneath the floor. Another object is to provide an improved construction which will enable the horizontal revent branch of the closet trap which extends between the soil and revent stacks to be located lower down than heretofore and still have the requisite height to prevent it from act.- ing as a waste pipe under accidental clogging of the waste. A further object is to provide a new and improved combination waste and vent fitting for use in the system which all po ss ve ti g nctions for all Serial No. 579,567,

of the fixtures and also drain or waste functions for the lavatory and bathtub.

A plumbing system assembled and erected in accordance with my present invention is illustrated in the accompanying drawing, in which Fig. 1 is a vertical section through the roof and several floors of a multiple story building showing my improved plumbing system in elevation therein: and

F 2 is an enlarged horizontal section, looking downwardly, on the line 22 of Fig. 1.

Referring to the drawing, 1, 2 and 3 inclicate the first, second and third floors, respectively, and R the roof of a three-story building, and 4 and 5 designate the opposite sides of ahollow vertical wall structure which may be assumed to extend the full height of the three stories, within which my improved plumbing system is installed.

.This latter includes the usual waste and vent stack 6, in which is included at each of the three floors a sanitary waste and vent fitting 7 herein shown as embodying the structure of the sanitary T forming the subject matter of Letters Patent No. 849,383 granted to me April 9, 1907 but the specific structure of the said fitting is not material to the present invention.

Spaced at a greater or less distance from the waste and vent stack 6, as conditions may require or choice may dictate, is the revent stack comprising mainly the vertical sections 8 which extend through the second and third floors.

Lying between the waste and vent stack and the revent stack at each of the several floors, and communicating with both of said stacks, is a combined waste and vent branch assembly through which the lavatory L and the bathtub B are discharged and vented at all three floors, and the closet C is vented at the first and second floors. An important element of this combined waste and vent branch assembly consists of an integral or one-piece fitting, the same comprising a pair of vertical limbs 9 and 10, which preferably lie closely adjacent to each other, as shown, and short upper and lower transverse limbs 11 and 12 communicating with the vertical limbs 9 and 10. At the top floor 3 one end of the upper transverse limb 11 is connected directly'into the main waste and vent stack 6, or into the upper portion of the top fit:

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ting 7.-f ormi;1;1g an element of said stack, by a horizontal pipe section 13; while on thesec- 0nd and first floors the same end of the upper transverse limb 11 is directly continuous with the upper end of the vertical limb 9 through acurved or angular bend. The opposite end of the upper transverse limb 11 at all three floors communicates with the revent stack; at the top floor by a down-turned elbow 11 at the intermediate floor by a T head 11, and at the bottom floor by an upwardly-turned inclined continuation 11 One end (the right .as herein shown) of the lower limb 12 of the fitting is directly continuouswi-th the lower end of the vertical limb 10 through a curved elbow bend, while the oppositeendis connected by a horizontal pipe section 14: directly into the auxiliary waste inlet 15 of the soil pipe fitting 17.

On the vertical limb 9 of the lower and intermediate fittings is a lateral branch 16 that is connected by horizontal and vertical pipe sections 13 and 17, and an elbow 18, into the vent branch of the soil pipe fitting 7. On the lower end of the vertical limb 9, just below the floor, is a lateral branch 18, into which is connected the drain :pipe 19 leading from the bathtub 'On the ver tical limb 10, approximately mid-height of the latter, is a lateral branch 20, into which is connected the drain pipe 21 from the lavatory L. The discharge pipe 22 from the closet C leads into the main waste branch 23 of the soil pipe fitting 7, as usual.

The manner in which the several fi-ntures are discharged and theirseals or traps vented to avoid danger of siphonage will be readily apparent to plumbers and others skilled in the art from the foregoing description of the structure and organization. The location of the conrbined waste and vent branch assembly between and in the plane Off the main soil stack and the =revent stack avoids the use of jumpovers, adapts the system to installation in relatively thin walls, and also affords flexibility of widthwise adjustment to suit the relative grouping Oil the fixtures in the bathroom or any other special conditions, since the transverse vent and drain pipes 13, 13" and 14 can obviously be cut to any required lengths ac cording to the spacing of the waste and revent V pipes.

111 my'former application above referred to I have shown and claimed a combination waste and vent fitting located between the main Waste and revent stacks generally resembling that herein described, and wherein the horizontal closet vent pipe is connected into the top of that vertical limb of the fitting which receives the waste from the lavatory. In my present invention the horizontal closet vent pipe connects into the other vertical limb of the fitting, namely, that one which receives the bathtub waste. The bathtub waste opening being much lower than the lavatory waste opening, this enables the horizontal closet ventpipe to be located much lower down and still be above the top of the bathtub fixture so as to make impossible overflow of waste through said vent pipe in case the regular waste )ipe becomes clog ed. It will also be observed by reference to ig. 2 that by connecting the bathtub waste pipe into the vertical limb 9 which is remote from the bathtub, and connecting the lavatory waste pipe into the vertical limb 10 which is nearest the bathtub, more working space is allowed for the interposition of the usual drum trap, indicated at T in Fig. 2, in the bathtub waste )ipe. \Vhere the situation involves a built-in bathtub, the drum trap cannot be located beneath the tub, but must be located between the outer wa-ll of the bathtub and the waste opening in the purtition wall; and my present arrangement increases the working space for the installation as compared with systems heretofore known.

I claim In a plumbing system of the character described, the combination of a vertical soil stack, a straight vertical revent stack, and a combined waste and vent pipe structure for bathroom fixtures, said structure lyingwholl-y between and in the vertical plane of said soil and revent stacks and including an upper transversely disposed member coinmunicating at one end with said revent stack, a lower transversely disposed member comnunricating at its opposite end with said soil stack, and a pair of vertical members respectively integral with the other ends of said upper and lower members. one of said vertical members having a lateral branch communicating directly with a lavatory drain pipe, and the other having :1 lateral branch near its lower end communicating directly with a bathtub drain pipe, and another lateral branch at a point approximately mid-height thercoil' conm'lunicating directly with a vent branch pipe connected into said soil stack.

JOHN L. FRUIN. 

